US20150173891A1 - Accommodating intraocular lens - Google Patents
Accommodating intraocular lens Download PDFInfo
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- US20150173891A1 US20150173891A1 US14/526,893 US201414526893A US2015173891A1 US 20150173891 A1 US20150173891 A1 US 20150173891A1 US 201414526893 A US201414526893 A US 201414526893A US 2015173891 A1 US2015173891 A1 US 2015173891A1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
- A61F2/16—Intraocular lenses
- A61F2/1613—Intraocular lenses having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus
- A61F2/1624—Intraocular lenses having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus having adjustable focus; power activated variable focus means, e.g. mechanically or electrically by the ciliary muscle or from the outside
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
- A61F2/16—Intraocular lenses
- A61F2/1613—Intraocular lenses having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus
- A61F2/1648—Multipart lenses
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
- A61F2/16—Intraocular lenses
- A61F2/1613—Intraocular lenses having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus
- A61F2/1624—Intraocular lenses having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus having adjustable focus; power activated variable focus means, e.g. mechanically or electrically by the ciliary muscle or from the outside
- A61F2/1635—Intraocular lenses having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus having adjustable focus; power activated variable focus means, e.g. mechanically or electrically by the ciliary muscle or from the outside for changing shape
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
- A61F2/16—Intraocular lenses
- A61F2002/1681—Intraocular lenses having supporting structure for lens, e.g. haptics
Definitions
- This invention relates generally to the field of accommodating intraocular lenses and, more particularly, to a haptic design for a curvature changing accommodating intraocular lens.
- the human eye in its simplest terms functions to provide vision by transmitting light through a clear outer portion called the cornea, and focusing the image by way of a crystalline lens onto a retina.
- the quality of the focused image depends on many factors including the size and shape of the eye, and the transparency of the cornea and the lens.
- IOL intraocular lens
- phacoemulsification In the United States, the majority of cataractous lenses are removed by a surgical technique called phacoemulsification. During this procedure, an opening is made in the anterior capsule and a thin phacoemulsification cutting tip is inserted into the diseased lens and ultrasonically vibrated. The vibrating cutting tip liquefies or emulsifies the lens so that the lens may be aspirated out of the eye. The diseased lens, once removed, is replaced by an IOL.
- the natural lens In the natural lens, distance and near vision is provided by a mechanism known as accommodation.
- the natural lens is contained within the capsular bag and is soft early in life.
- the bag is suspended from the ciliary muscle by the zonules. Relaxation of the ciliary muscle tightens the zonules, and stretches the capsular bag. As a result, the natural lens tends to flatten. Tightening of the ciliary muscle relaxes the tension on the zonules, allowing the capsular bag and the natural lens to assume a more rounded shape. In this way, the natural lens can focus alternatively on near and far objects.
- presbyopia affects nearly all adults upon reaching the age of 45 to 50.
- IOLs accommodative intraocular lenses
- FIG. 1 illustrates an accommodating intraocular lens according to an embodiment of the invention
- FIG. 2 illustrates a cross-sectional side view of the lens of FIG. 1 .
- An accommodating intraocular lens includes an optic and four haptics.
- the optic includes an outer wall, a solid posterior optic, an anterior fluid chamber, an anterior membrane and a fluid reservoir within the outer wall surrounding the anterior fluid chamber and the solid posterior optics.
- the four haptics are attached to the outer wall at four attachment points.
- Each of the four haptics includes an arc member extending between successive attachment points and contacting the outer wall only at the attachment points.
- Each of the arc members is configured to compress laterally under accommodative forces.
- an accommodating intraocular lens 100 includes four haptics 102 producing uniform lateral translation around an optic 104 .
- the haptics 102 are connected to an outer wall 202 of the optic 104 at four attachment points 106 with arc members 108 extending between the attachment points 106 to produce lateral force at each attachment point 106 .
- the arc members 108 allow flexion in the haptics so that the lateral accommodative force is translated gradually and uniformly into force on the optics.
- the optics 104 has octagonal sides with four of the octagonal sides forming flat planes at the attachment points 106 .
- FIG. 2 illustrates a cross-section of the lens 100 , which illustrates the force-transfer mechanism for converting the lateral force into a change in optical power.
- the outer wall 202 of the optic 104 is attached to a solid posterior optic 204 and an anterior fluid chamber 206 covered by a membrane 208 .
- the posterior optic 204 is plano-convex, so that when the membrane 208 of the anterior plane bulges outwardly, the optical power of the lens 100 is increased.
- a fluid reservoir 210 within the outer wall 202 surrounds the solid posterior optic 204 and the anterior fluid chamber 206 .
- the fluid reservoir 206 can deform the anterior fluid chamber by pressure transfer in the depicted embodiment or, in alternative embodiments, by transferring fluid to the anterior chamber 206 via channels, such as holes or slots (not shown). As the outer side 202 is laterally compressed by the haptics 102 , the fluid in the anterior chamber 206 causes the membrane 208 to bulge outwardly. This in turn produces an increase in optical power.
Abstract
Description
- This application claims the priority of U.S. Provisional Application No. 61/918,942 filed Dec. 20, 2013.
- This invention relates generally to the field of accommodating intraocular lenses and, more particularly, to a haptic design for a curvature changing accommodating intraocular lens.
- The human eye in its simplest terms functions to provide vision by transmitting light through a clear outer portion called the cornea, and focusing the image by way of a crystalline lens onto a retina. The quality of the focused image depends on many factors including the size and shape of the eye, and the transparency of the cornea and the lens.
- When age or disease causes the lens to become less transparent, vision deteriorates because of the diminished light which can be transmitted to the retina. This deficiency in the lens of the eye is medically known as a cataract. An accepted treatment for this condition is surgical removal of the lens and replacement of the lens function by an artificial intraocular lens (IOL).
- In the United States, the majority of cataractous lenses are removed by a surgical technique called phacoemulsification. During this procedure, an opening is made in the anterior capsule and a thin phacoemulsification cutting tip is inserted into the diseased lens and ultrasonically vibrated. The vibrating cutting tip liquefies or emulsifies the lens so that the lens may be aspirated out of the eye. The diseased lens, once removed, is replaced by an IOL.
- In the natural lens, distance and near vision is provided by a mechanism known as accommodation. The natural lens is contained within the capsular bag and is soft early in life. The bag is suspended from the ciliary muscle by the zonules. Relaxation of the ciliary muscle tightens the zonules, and stretches the capsular bag. As a result, the natural lens tends to flatten. Tightening of the ciliary muscle relaxes the tension on the zonules, allowing the capsular bag and the natural lens to assume a more rounded shape. In this way, the natural lens can focus alternatively on near and far objects.
- As the lens ages, it becomes harder and is less able to change its shape in reaction to the tightening of the ciliary muscle. Furthermore, the ciliary muscle loses flexibility and range of motion. This makes it harder for the lens to focus on near objects, a medical condition known as presbyopia. Presbyopia affects nearly all adults upon reaching the age of 45 to 50. Various accommodative intraocular lenses (IOLs) have been proposed. However, due to limited residual accommodative forces, the mechanical design required to effectively translate accommodative force into changes in optical power has proved challenging.
-
FIG. 1 illustrates an accommodating intraocular lens according to an embodiment of the invention; and -
FIG. 2 illustrates a cross-sectional side view of the lens ofFIG. 1 . - Various embodiments of the present invention provide sensors for assessing residual accommodative function. In a particular embodiment, An accommodating intraocular lens includes an optic and four haptics. the optic includes an outer wall, a solid posterior optic, an anterior fluid chamber, an anterior membrane and a fluid reservoir within the outer wall surrounding the anterior fluid chamber and the solid posterior optics. The four haptics are attached to the outer wall at four attachment points. Each of the four haptics includes an arc member extending between successive attachment points and contacting the outer wall only at the attachment points. Each of the arc members is configured to compress laterally under accommodative forces. The embodiments discussed below are exemplary, and various changes can be made to these illustrative embodiments without deviating from the scope of the invention. For example, the features of one embodiment can be combined with those of another embodiment.
- As shown in
FIG. 1 , an accommodatingintraocular lens 100 includes fourhaptics 102 producing uniform lateral translation around an optic 104. Thehaptics 102 are connected to anouter wall 202 of the optic 104 at fourattachment points 106 witharc members 108 extending between theattachment points 106 to produce lateral force at eachattachment point 106. Thearc members 108 allow flexion in the haptics so that the lateral accommodative force is translated gradually and uniformly into force on the optics. In order to further increase the uniformity of the contact at theattachment points 106, theoptics 104 has octagonal sides with four of the octagonal sides forming flat planes at theattachment points 106. -
FIG. 2 illustrates a cross-section of thelens 100, which illustrates the force-transfer mechanism for converting the lateral force into a change in optical power. Theouter wall 202 of the optic 104 is attached to a solid posterior optic 204 and ananterior fluid chamber 206 covered by amembrane 208. Theposterior optic 204 is plano-convex, so that when themembrane 208 of the anterior plane bulges outwardly, the optical power of thelens 100 is increased. Afluid reservoir 210 within theouter wall 202 surrounds the solid posterior optic 204 and theanterior fluid chamber 206. Thefluid reservoir 206 can deform the anterior fluid chamber by pressure transfer in the depicted embodiment or, in alternative embodiments, by transferring fluid to theanterior chamber 206 via channels, such as holes or slots (not shown). As theouter side 202 is laterally compressed by thehaptics 102, the fluid in theanterior chamber 206 causes themembrane 208 to bulge outwardly. This in turn produces an increase in optical power. - Those having ordinary skill in the art will appreciate that various changes can be made to the above embodiments without departing from the scope of the invention.
Claims (4)
Priority Applications (1)
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US14/526,893 US9326846B2 (en) | 2013-12-20 | 2014-10-29 | Accommodating intraocular lens |
Applications Claiming Priority (2)
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US201361918942P | 2013-12-20 | 2013-12-20 | |
US14/526,893 US9326846B2 (en) | 2013-12-20 | 2014-10-29 | Accommodating intraocular lens |
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US20150173891A1 true US20150173891A1 (en) | 2015-06-25 |
US9326846B2 US9326846B2 (en) | 2016-05-03 |
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US14/526,893 Active US9326846B2 (en) | 2013-12-20 | 2014-10-29 | Accommodating intraocular lens |
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WO (1) | WO2015094485A1 (en) |
Cited By (3)
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US10898316B2 (en) | 2018-03-01 | 2021-01-26 | Jellisee Ophthalmics Inc | Intraocular lens |
US11273029B2 (en) | 2016-09-27 | 2022-03-15 | Verily Life Sciences Llc | Intraocular active accommodation system |
US11426272B2 (en) | 2019-05-03 | 2022-08-30 | Jellisee Ophthalmics Inc | Intraocular lenses with shape-changing optics |
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US10835373B2 (en) | 2002-12-12 | 2020-11-17 | Alcon Inc. | Accommodating intraocular lenses and methods of use |
IL161706A0 (en) | 2004-04-29 | 2004-09-27 | Nulens Ltd | Intraocular lens fixation device |
CA2601351A1 (en) | 2005-03-30 | 2006-10-05 | Nulens Ltd | Accommodating intraocular lens (aiol) assemblies, and discrete components therfor |
US10299913B2 (en) | 2009-01-09 | 2019-05-28 | Powervision, Inc. | Accommodating intraocular lenses and methods of use |
JP2013525028A (en) | 2010-04-27 | 2013-06-20 | レンスゲン、インコーポレイテッド | Adjustable intraocular lens / device |
WO2012106673A1 (en) | 2011-02-04 | 2012-08-09 | Forsight Labs, Llc | Intraocular accommodating lens |
US10433949B2 (en) | 2011-11-08 | 2019-10-08 | Powervision, Inc. | Accommodating intraocular lenses |
EP2967842B1 (en) | 2013-03-15 | 2020-11-04 | Alcon Inc. | Method of reconfiguring an intraocular lens for delivery to a delivery device |
WO2015066532A1 (en) | 2013-11-01 | 2015-05-07 | Daniel Brady | Two-part accommodating intraocular lens device |
WO2015066502A1 (en) | 2013-11-01 | 2015-05-07 | Thomas Silvestrini | Accomodating intraocular lens device |
JP6591525B2 (en) | 2014-03-28 | 2019-10-16 | フォーサイト・ラブス・リミテッド・ライアビリティ・カンパニーForSight Labs, LLC | Perspective accommodation type intraocular lens |
US10004596B2 (en) | 2014-07-31 | 2018-06-26 | Lensgen, Inc. | Accommodating intraocular lens device |
US10647831B2 (en) | 2014-09-23 | 2020-05-12 | LensGens, Inc. | Polymeric material for accommodating intraocular lenses |
EP3370647B8 (en) | 2015-11-06 | 2021-06-30 | Alcon Inc. | Accommodating intraocular lenses and methods of manufacturing |
CN113180886A (en) | 2015-12-01 | 2021-07-30 | 雷恩斯根公司 | Accommodating intraocular lens device |
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WO2018081595A1 (en) | 2016-10-28 | 2018-05-03 | Forsight Vision6, Inc. | Accommodating intraocular lens and methods of implantation |
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US11273029B2 (en) | 2016-09-27 | 2022-03-15 | Verily Life Sciences Llc | Intraocular active accommodation system |
US10898316B2 (en) | 2018-03-01 | 2021-01-26 | Jellisee Ophthalmics Inc | Intraocular lens |
US11426272B2 (en) | 2019-05-03 | 2022-08-30 | Jellisee Ophthalmics Inc | Intraocular lenses with shape-changing optics |
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WO2015094485A1 (en) | 2015-06-25 |
US9326846B2 (en) | 2016-05-03 |
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